Micrometer height gauge



l Aug. 9,1949. J.-M. zYsK MICROMETER HEIGHT GAUGE Filed Feb. l12, 1948 Joseph M. Zys/r Ils/VENTOR.

2 Sheets-Sheet 1 BY www? Mg-m Aug 9, 1949- J. M. zYsK t 2,478,518

MICROMETER HEIGHT GAUGE Filed Feb. l2, 1948 2 Sheets-Sheet 2 80 Josep/1 M. Zysk JNVENTOR.

' df/Wfmm Patented Aug. 9, 1 949 2,478,518' 'MroaoMn'rlsn HEIGHT (auktionv Joseph M. zysk, Damn, Mam

Appiieanan February 12, 194s, sean Ne. moov 5' crains; (c1. 3er-170i '4I-his invention. comprisesnovel and useful improveniente in a height' gauge and more specically pertains to a device for measuring and` scribi'ng vertical surfaces with. micrometric accuracyV and with facility.

The principal object of this invention resides in the provision. ot an instrument. for? scribing lines and measuring vertical heights; of articles with facility and with. the accuracykof4 a Vernier micrometer. K

An important feature of.` the invention resides in the provision of aA base having a. flared standard thereon, a scriber vcarriage slidable uponl thev standard, a novel fastening means: for adjustahly securing the carriage to the standard and Vfor simultaneously providing a finger grip portion.

for raising or lowering the carriage; ajmicrom-rr eter arrangement. screw threaded upon` the lower of example only in the 'accompanying drawings,

wherein:

Figure 1` isr a side elevationaiview of a preferred embodiment ofthe invention;

Figure 2' is a rearview of the apparatus of Figure 1':

Figure 3 is' a front elevational view` oi".v an element of the' micrometer portion of theinvention;

Figure 4 is a vertical transverse sectional detail view through the scrber fastening means and. is taken substantially upon, the plane of the section lineI 4-4 of Figure 1;,

Figure 5A is a front elevational viewo'f the micrometer scale forming an element of the invention;

Figure 6- is a vertical sectional detailI View taken upon an enlarged scale of the base', lower Figure 8 is atop plan,l View of *theinventionY companyin'g drawings, wherein like ruimerals` taken substantialy upon planeet l91=1 hertt Figure 9 is aperspectiveview ofgthe of' the'invention; and

Figure 10 is a perspective View of the` scriber support arm forming.v apart of the invention..

Referring now Vmore specifically to the ac designate similar parts lthroughsut'Y the various views, attention is directed rst to Figures 1 and` 2, and the enlarged. detail showing ot Figure 6, wherein IU designates a support or Base the device which may |he of any suitable materia-L2 and shape, and is preferably provided with' de. pending ribs oranges. l2 which comprise legsu for supporting. the Ibase. 'I'he base is providedwith a suitable vertically ,disposed threaded aper ture I4' in which'issc-rew threadedly engaged the,

lower end 'of a rod-likev standard 8, the. threaded lower end portion I'G of preferably-prolvided with threads of a predetermined. and

known pitch in order to constitute measuring means for a micrometer attachment.

n The standard I8 is rigidl'yretained. in position on the base I'II, by means of a 'set' screw 20 extending through a suitable bore in the'base. wl-ere-vV by the standard Yis locked against accidental movementwhich would tendto render inaccurate the micrometer measurements. obtained. therew-v from as set forth hereinafter.

ABv means cf a clamping. plate 2L and fastening screws 2'4 for attaching the sameI in` clam-ping engagement to' the side of the. base I', there is rigidly mounted in vertical position and in justa.-

positionA tothe standard' l8/,asca1e member 2S; provided with finely graduated markingsA which may for example be forty to an. inch7V Preferably these markings extend over a predetermined distancel of the'scale, such for example as one inch, whereby a very accurate reading within this limit may be obtained.

Referring nowto Figures 3` and 6 fora better understanding of the construction. of the micrometer element, there is disclosed a. sleeveV or, bushing 28 having a knurlied nger grip portion 3G for adiiustm'ent of this bushing, the bushing be-r ing internally threaded for adjustment upon. the screw threads I6. The lower end of this` bushing comprises a collet whichy externallyV threaded as at 32,. `is of tapering or frusta-conicall shape upon its exterior surfacer andfis yprovided with a plurality of. longitudinal slots 34 therein, for imparting resiliency or exibility to the ma terial thereof.. A lock nut. 36v is screw threaded. upon the threaded portion 32 and by reason ofA the tapering threads, movement of this nut will result in a clamping or bind-ing action of the collet upon the threads I6, thereby providing an adjustable frictional drag of the sleeve upon the threads. Upon its body portion, the sleeve 28 is provided with a V-shaped groove 38 within which is pressed a corresponding portion of a sleevelike hook 40 for retaining the latter rigidly upon the bushing28, for rotation therewith. From this` reading of the height of the lower edge, and

hence the top of the lthimble or micrometer member 28, with reference to a datum plane which may be either the upper or lower surface of the base I0. Furthen'the registration of the indicia upon 'the thimble`42, which indicia preferably divide the circumference into' fty equal units, constitute a 'vernier meanssince the registration of any given indicia with the edge of the scale 26 will accurately indicate the proportion of a turn and hence will indicate a very iine measurement within the limits of the micrometer scale 26.

Preferably, the upper surface of the finger grip portion 30 is employed to support a scriber carriage for marking or measuring, this carriage slidably embracing the standard I8, and eitherl resting directly upon the portion 38, or being spaced selected predetermined distances therefrom by the interpositioniofv one of a series of Very accurately calibrated insert sleeves 44 which may be slidably placed upon the standard I8, between the micrometer member 28 and the bottom of the scriber carriage. Thus, by properly choosing the length of ther insert sleeves, thev exact measurement within very ne divisions of an inch of the micrometer member is added to the gauge block sleeves 44 for imparting the same accuracy to larger measurements.

Attention is now directed more particularly to Figures 1, 2, 7 and 8 forfa better understanding of the scriber carriage indicated generally by the numeral 46. This carriage consists of a pair of side plates 48 and 50 which are joined together in rigid assembly by means o f clamping screws 52 in one edge, and a pair of clampingA screws 54 in the other edge thereof. These latter clamping screws serve to retain a bridge member 56 comprising a flat bevelled block which is inter'- posed between the two plates 48 and 5D at the upper ends thereof. The fastening screws 52 further serve to clamp a slide or guide 58 between the front ends of the plates 48 and 50, this slide having a semi-cylindrical concave surface 66 on the inside thereof for sliding engagement upon and conforming to the curvature of the standard I8. integrally extending laterally from the lower portion of the slide 58, is a horizontally disposed support arm 62. Longitudinally slidable upon the arm 62 is a scriber clamp which as shown in Figure 4 consists of a pairof parallel generally rectangular plates 64 between which are secured upper and lower blocks68 and 'I8 respec- '4 cured within the clamping device and against the under surface of the arm 62 as shown in Figure 1. This scriber as shown in Figure 9, includes a horizontal generally rectangular cross section arm 14, having a perpendicular terminally depending portion 16, which at its lower end extends into a forwardly extending extremity '18, whose end is bevelled as at 80 to provide a scriber point v.for marking or gauging articles with which the instrumentA is to be used. Asshown best in Figure '7, the scriber carriage fastening means preferably consists of a U-shaped member having legs 82 extending laterally therefrom in parallel arrangement, with a central or bight portion 84. The spacing of these legs is such as to just receive the bridge 56 therebetween, whereby the bight lportion 84 slidingly engages the dialmetrically opposite cylindrical surface of the the latter into frictional and clamping engage- As will readily be ment with the standard I8 seen, the laterally extending legs 82 not only constitute finger grip means, whereby when the screw member 86 is released, the U-shaped member, andthe scriber carriage attached thereto may be easily raised or lowered, but'also retain the member 84 upon member 56. n

From the foregoing, it is thought that the construction and operation of the device will be readily understood. Obviously, the dimensionsrof the scriber, and the supporting structure thereof, may be such that the scriber point 80 whether employed as an indicator or as a marker may be adjusted with accurateness to a predetermined distance frornthe reference plate, whether the upper or lower surface of the base IU. l

It will'thus beseen that there has been provided Va device which with ease and accuracy will facilitate the"gauging or lscribing of vertical dimensions of articles.

In view ofthe foregoing description taken in will be quite apparent to those skilled inthis art.v Amore detailed description is accordingly deemedY unnecessary.V

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the Vinvention the same is susceptible to certain changes fully comprehended by ,the spirit of the invention as herein described and the scope of the appended claims.

` Having described the invention, what is claimed as new is:

1. A height gauge comprising a base, a standard secured to said'base, a carriage slidable on said standard, a clamp for adjustably securing said carriage on said standard, a scriber, means for mounting said scriber on said carriage, a micrometer sleeve on -said standard and a plurality of spacing sleeves surrounding said standard interposed between said micrometer sleeve and said carriage.4

2. The combination of claim 1 including screwI threads on said standard adjacent said base, said micrometer sleeve being adjustable on vsaid threads, and a scale registeringwithsaid micrometer sleeve mounted on said base. n

3. The combination of claim 2 including vernier indicia'on the rim of said micrometer sleeve. 4. The ,combination of claim lincluding screw threads on said standard adjacent said base, said micrometer sleeve being adjustable on said threads, said micrometer sleeve including an internally and externally threaded collet, a thirnble on said collet, Vernier indicia on the periphery of Y said thimble, a scale carried by said base for registry with said thimble and said vernier indicia.

5. The combination of claim 1, wherein said clamp includes a slide supported by said carriage and slidably engaging said standard, adjusting means on said carriage for pressing said slide against said standard, said slide having laterally extending legs at its extremities comprising nger-grip portions for raising and lowering said carriage on said standard.

JOSEPH M. ZYSK.

REFERENCES CITED The following referenlces are of record in the le of this patent:

UNITED STATES PATENTS Number 

